Originally Posted by lowrider2
I have a 2004 Itasca Meridian that uses HWH system and I am trying to figure out which solenoid valve is for which hydraulic jack, I found where there located but it is a hard area to get into and work. My problem is the drivers rear jack does not want to come up all the way on its own. I've already replaced the springs with New ones and still have same problem. Any help would be appreciated.
We have a sort of sister ship to yours. An '04 Itasca Horizon, 35GD with the C7 330HP CAT. Yep, no doubt about it, the HWH system, located under the steps, is quite congested in that area. I'll have to dig up my service manual and pdf files to see if I've got a diagram of the solenoid layout. There's an extremely nice gent on here that goes by the user name of "AZPete". He's the reigning authority of all the HWH systems and, operations.
If he chimes in here before I get back, he'll more than likely tell you right off the top of his head, which solenoid does what. I don't know if you've tried it or not but, you could do what I've done a couple of times. And that is, to spray those jacks with some WD-40 and or, use some ATF on them. I leave them just a tad wet and, wow, those jacks seam to sprint up. And, that method of help, seems to last for quite a while, maybe a year or so.
Then, while doing other maintenance, I do it again and, they're running up and down at peak speed again. Maybe worth a try if you haven't done it.